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Número de pieza UM10512
Descripción SSL2109 reference board
Fabricantes NXP Semiconductors 
Logotipo NXP Semiconductors Logotipo



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UM10512
SSL2109 reference board
Rev. 1.1 — 19 April 2012
User manual
Document information
Info Content
Keywords
SSL2109, buck, controller, reference board, LED driver, LED retrofit lamp
Abstract
This document describes the performance, technical data and the
connection of the SSL2109 reference board. The SSL2109 is an NXP
Semiconductors controller IC intended to provide a low cost, small form
factor LED driver. The reference board is intended to operate at 230 V or
120 V (AC), using an output voltage of 30 V or greater.
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UM10512 pdf
NXP Semiconductors
UM10512
SSL2109 reference board
The anode of the LED load is connected to pin 1 of connector J5. The cathode is
connected to pin 2 of connector J5. Use an LED string with a VF greater than 20 V on this
reference board. Under the expected conditions, the output current is 200 mA. If the rated
current of the LED does not meet the specification, the current can be adjusted. See
Section 6 for instructions.
J6
1
2
J5
4
3
(1) J6: connect the L of the AC mains supply
(2) J6: connect the N of the AC mains supply
(3) J5: Positive Anode connection
(4) J5: Negative cathode connection
Fig 4.
Board connection diagramhttp://www.DataSheet4U.net/
aaa-002200
4. Specification
Specifications for the reference board are listed in Table 1
Table 1. Reference board specifications
Parameter
Value
AC line input voltage
200 V to 250 V
100 V to 130 V
Output voltage
30 V (DC) to 130 V (DC)
30 V (DC) to 90 V (DC)
Output current
Maximum power into LED load
208 mA at Vo = 100 V (DC)
208 mA at Vo = 70 V (DC)
23 W
Efficiency
>94 %
Power Factor
>0.5
THD
83 %
Board dimensions
57 17.5 17.5
(length × width × height, mm) 83 40
Operating temperature
40 °C to +100 °C
NTC Threshold temperature 80 °C
Comment
Version 230 V 50 Hz
Version 120 V 60 Hz
Version 230 V
Version 120 V
Version 230 V
Version 120 V
-
See Figure 5
at > 12 W
at 20 W
Internal board
External board
-
15 °C
UM10512
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 19 April 2012
© NXP B.V. 2012. All rights reserved.
5 of 19
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UM10512 arduino
NXP Semiconductors
UM10512
SSL2109 reference board
with a PF of 0.6 at 230 V. The choice offers the highest efficiency. It is possible to tune the
PF to higher values using two methods.
Increasing the value of R1 raises the PF higher than 0.7 with additional losses. See
Table 2.
Table 2.
VI (V)
230
230
120
120
PF adjustment, increasing the value of resistor R1
VO (Vavr)
45
IO (mA)
222
R1 ()
220
Efficiency (%) PF
83.3 0.71
109 209 100 86.2
0.70
45 219 56 84.7
0.70
62 214 47 84.8
0.71
THD (%)
97
86
99
93
A resistor value of 220 W for R1 also results in operation with most available phase cut
dimmers without damaging the lamp or dimmer. This change is not intended to reach
stable operation without flicker or a good dimming range.
Dimension the power rating of R1 to handle peak powers that occur using leading-edge
dimmers. These powers range between 2 W to 6 W. Alternatively, make a thermal link
between the onboard NTC and R1, causing the board to turn off at overtemperature of R1.
The second option is to increase PF using a valley fill circuit. Figure 10 shows the basic
schematic for the circuit. Table 3 shows the results.
Table 3.
VI (V)
120
230
230
PF adjustment, valley fill circuit
VO (Vavr)
44.5
IO (mA)
212
C2X/Y (F)
47
L1 (mH) R1 ()
0.82
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100
62 216 22 2.2 47
62 215 22 2.2 390
Efficiency (%) PF
83.1 0.9
92.9 0.81
80 0.9
THD (%)
43
63
40
C2X
R1
C2Y
aaa-000502
Fig 10. Valley fill circuit
The valley fill circuit can only be employed, if the output voltage is less than half the peak
input voltage. At 230 V input, it operates up to 85 V (DC) output voltage, otherwise no
power is delivered to the LEDs during the valley duration.
UM10512
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 19 April 2012
© NXP B.V. 2012. All rights reserved.
11 of 19
datasheet pdf - http://www.DataSheet4U.net/

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